Resistor 0.5W 120 ohm (5 pcs)

The Resistor 0.5W 120 ohm is a through-hole fixed resistor with a resistance of 120 Ω and a power rating of 0.5 W, sold in a pack of 5. 120 Ω is the standard termination value for CAN bus and RS-485 lines, and it is also handy for limiting LED current at 3.3 V and as a gate or load resistor in small circuits.

Resistor 0.5W 120 ohm Specifications

• Resistance: 120 Ω
• Power rating: 0.5 W (1/2 W)
• Maximum current at 0.5 W: about 64 mA
• Type: fixed resistor, axial leads, through-hole
• Fits: breadboards, perfboards and PCBs
• Pack size: 5 pieces

Resistor 0.5W 120 ohm Applications

• Termination resistors at both ends of CAN bus and RS-485 (Modbus) lines
• LED current limiting from 3.3 V (about 10 mA for a red LED)
• MOSFET gate resistors
• Small test loads and current limiting
• Electronics education and prototyping

What's in the Box

• 5 × 120 Ω 0.5 W resistors

Tip: Resistors have no polarity, so they can be fitted either way round. Check the power with P = V² ÷ R: with 120 Ω the 0.5 W limit is reached at about 7.7 V across the resistor, and 12 V across it would need 1.2 W, so use a higher-wattage resistor there.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.